Bookverdict.com

K-Gr 3—Keller takes readers on a marvelous thought experiment, speculating about early humans and their ideas about the sun. Skipping forward in time to a colonial era, "we begin to believe the sun is not enough." Cue the Industrial Revolution and the burning of coal, a step in humanity that slowly, over centuries, poisons the earth. A French math teacher, Augustin Mouchot, wonders about the use of coal and how to harness the sun's energy more efficiently. Mouchot exits and a New Yorker named Charles Fritts, "two decades later," creates the world's first solar panel; engineer Aubrey Ene...Log In or Sign Up to Read More